Table 3. Cephalometric parameters before and after the adenotonsillectomy (p value for comparison between respiratory symptom group and control group)

	호흡증상 있음 (n=18)	호흡증상 없음 (n=14)	전체 (N= 32)	p-value
Pre-op. SNA angle (˚)	85.12±4.84	89.52±4.89	86.48±5.79	0.154
Post-op. SNA angle (˚)	87.02±6.13	91.35±4.98	88.50±6.13	0.136
Pre-op. SNB angle (˚)	79.37±4.84	82.05±4.17	80.03±5.12	0.375
Post-op. SNB angle (˚)	78.36±3.85	82.38±4.20	79.77±4.77	0.111
Pre-op. ANB angle (˚)	8.17±2.39	8.17±3.00	7.35±2.67	0.340
Post-op. ANB angle (˚)	7.97±3.48	9.14±2.16	8.44±2.92	0.214

Op.: operation, SNA: angle between sella, nasion and subspinal point A), SNB: angle between sella, nasion and supramental point B), ANB: angle between maxilla and the mandible.